US3271330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight phosphonitrile fluoroesters
Assignee: 3M Co
•
Filing: 1963-11-15
•
Granted: 1966-09-06
•
Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Roger L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:50
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025; C01; C01B; C01B21/00; C01B21/082; C01B21/097; C01B21/098; C01B21/0986; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A SOLID, HIGH MOLECULAR WEIGHT, VALCANIZABLE, MILLABLE, PLASTIC, WATER-STABLE, NON-DISTILLABLE, LIGHT COLORED PHOSPHORITRILE POLYMER HAVING REPEATING UNITS OF THE FORMULA:
Claim 2
Dependent Claim
20 words
A SOLID, HIGH MOLECULAR WEIGHT, VALCANIZABLE, MILLABLE, PLASTIC, WATER-STABLE, NON-DISTILLABLE, LIGHT COLORED PHOSPHORITRILE POLYMER HAVING REPEATING UNITS OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |