US3529995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine-containing copolymer treated fabrics
Assignee: 3M Co
•
Filing: 1967-12-01
•
Granted: 1970-09-22
•
Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel Smith
- 👤 Patsy O Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/37; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; C08F28/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6275; C08G18/6279; C08L; C08L33/00; C08L33/04; C08L33/14; C08L33/16; C14; C14C; C14C9/00; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; Y; Y10; Y10S; Y10S525/00; Y10S525/942; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2642416A
Cited
US2803615A
Cited
US3102103A
Cited
US3068187A
Cited
US3232790A
Cited
US3356628A
Cited
US3384627A
Cited
US3341497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |