US3074901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising polytetrafluoroethylene particles admixed with polystyrene containing dimethyl phthalate
Assignee: EIDP Inc
•
Filing: 1956-12-24
•
Granted: 1963-01-22
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Lantos Peter Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L25/00; C08L25/02; C08L25/04; C08L25/06
Claims Analysis
Total Claims: 0
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |