Patent US3097181A successfully refreshed from Google Patents.
US3097181A
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US
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Composition comprising polypyrrolidone and another polyamide
Assignee: GAF Chemicals Corp
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Filing: 1959-11-24
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Granted: 1963-07-09
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Expires: 1979-11-24
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Glickman
- 👤 Edgar S Miller
- 👤 Max E Chiddix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/02; C08L77/06; C08L2205/00; C08L2205/02; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A COMPOSITION OF MATTER COMPRISING POLYPYRROLIDONE AND A POLYAMIDE SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMETHYLENE ADIPAMIDE AND POLYEPSILON-CAPROLACTAM, THE SAID POLYPYRROLIDONE AND POLYAMIDE BEING PRESENT IN THE WEIGHT RATIO OF 1:20 100:1
Claim 2
Dependent Claim
33 words
A COMPOSITION OF MATTER COMPRISING POLYPYRROLIDONE AND A POLYAMIDE SELECTED FROM THE GROUP CONSISTING OF POLYHEXAMETHYLENE ADIPAMIDE AND POLYEPSILON-CAPROLACTAM, THE SAID POLYPYRROLIDONE AND POLYAMIDE BEING PRESENT IN THE WEIGHT RATIO OF 1:20 100:1
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |