US3271378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerizing acetylene and derivatives thereof
Assignee: GAF Chemicals Corp
•
Filing: 1963-11-08
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Granted: 1966-09-06
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Wiley E Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:10
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/06; C08F4/26; C08F38/00; Y; Y10; Y10S; Y10S149/00; Y10S149/116; Y10S149/12; Y10S149/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE PROCESS OF POLYMERIZING AN ACETYLENIC COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
10 words
THE PROCESS OF POLYMERIZING AN ACETYLENIC COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
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 |