US3661687A
Artificial grass sports field
Abstract
This record has no abstract on file.
Term
Term ended
Expired 9 May 1989, 37.4 years ago.
- Priority and filed
- Granted
- Expired
- Today
1 sheet
Sheet 1
Every citation, both ways
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1 member in 1 office
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 3298670 | United States of America | A |
Members1
| Document | Office | Kind | |
|---|---|---|---|
| US3661687AThis record | United States of America | A |
Numbers
- Application
- 32986
Titles
- English
- ARTIFICIAL GRASS SPORTS FIELD
Classification
- CPC, 4
- E01C13/08
- Y10S273/13
- Y10T428/23986
- Y10T428/23993
- IPC, 1
- E01C13 08