US2857366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoeluoroacetylene, polymers, and preparation
Assignee: EIDP Inc
•
Filing: 1956-08-28
•
Granted: 1958-10-21
•
Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 William J Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:43
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/278; C07C17/23; C07C17/361; C07C17/363; C07C21/00; C07C21/22; C07C51/00; C07C51/16; C07C51/31; C07C51/347; C07C51/377; C07C51/54; C07C51/56; C07C55/00; C07C55/32; C07C57/00; C07C57/52; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
4 words
SOLID, THERMOPLASTIC MONOFLUOROCETYLENE POLYMER.
References Cited (Backward Citations)
GB359997A
Cited
US2546997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |