Patent US4341227A successfully refreshed from Google Patents.
US2767089A
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Paper containing polyamide resins and process of producing same
Assignee: General Mills Inc
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Filing: 1951-05-21
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Granted: 1956-10-16
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Expires: 1971-05-21
Abstract
No abstract record available.
Inventors
- 👤 Malcolm M Renfrew
- 👤 Wittcoff Harold
- 👤 Niles A Kjelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:34
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31779; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A CELLULOSIC PAPER PRODUCT COMPRISING FIBERS HAVING DISPERSED AMONG THE FIBES THEREOF A POLYAMIDE HAVING THE POLYACYL GROUP OF POLYMERIC FAT ACIDS, AND THE POLYAMINO GROUP OF AN ALIPHATIC POLYAMINE, THE AMINO GROUPS PRIMARILY INVOLVED IN THE POLYAMIDE FORMATION BEING SEPARATED BY AT LEAST 3 ATOMS, THE POLYAMIDE HAVING A MOLECULAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 1,000 TO 10,000, SAID POLYAMIDE HAVING AN AMINE NUMBER OF AT LEAST 5.
Claim 2
Dependent Claim
70 words
A CELLULOSIC PAPER PRODUCT COMPRISING FIBERS HAVING DISPERSED AMONG THE FIBES THEREOF A POLYAMIDE HAVING THE POLYACYL GROUP OF POLYMERIC FAT ACIDS, AND THE POLYAMINO GROUP OF AN ALIPHATIC POLYAMINE, THE AMINO GROUPS PRIMARILY INVOLVED IN THE POLYAMIDE FORMATION BEING SEPARATED BY AT LEAST 3 ATOMS, THE POLYAMIDE HAVING A MOLECULAR WEIGHT WITHIN THE APPROXIMATE RANGE OF 1,000 TO 10,000, SAID POLYAMIDE HAVING AN AMINE NUMBER OF AT LEAST 5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |