US3240758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing polymers of aromatic amino acids
Assignee: Monsanto Co
•
Filing: 1961-12-18
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Granted: 1966-03-15
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Smith
- 👤 William A H Huffman
- 👤 Jr William T Dye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:39
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/30; C08G69/00; C08G69/02; C08G69/08; C08G69/12; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR THE PRODUCTION OF FIBER-FORMING POLYMERS COMPOSED OF THE REPEATING UNIT
Claim 2
Dependent Claim
13 words
A PROCESS FOR THE PRODUCTION OF FIBER-FORMING POLYMERS COMPOSED OF THE REPEATING UNIT
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |