US3371068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamides from dipiperidyls
Assignee: Monsanto Co
•
Filing: 1962-03-09
•
Granted: 1968-02-27
•
Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
- 👤 Preston Jack
- 👤 Ralph W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
SYNTHETIC LINEAR HEAT RESISTANT POLYAMIDES CONSISTING OF THE REGULARLY RECURRING STRUCTURAL UNIT
Claim 2
Dependent Claim
12 words
SYNTHETIC LINEAR HEAT RESISTANT POLYAMIDES CONSISTING OF THE REGULARLY RECURRING STRUCTURAL UNIT
References Cited (Backward Citations)
US3197442A
Cited
US3150146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |