US3477994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified polyoxymethylene
Assignee: EIDP Inc
•
Filing: 1966-08-02
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Granted: 1969-11-11
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Expires: 1986-08-02
Abstract
No abstract record available.
Inventors
- 👤 Carl Earle Schweitzer
- 👤 Robert Alton Setterquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/30; C08G2/06; C08G2/18; C08G4/00
Claims Analysis
Total Claims: 0
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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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |