US3366561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionizing irradiation polymerization of trioxane with copolymerizable stabilizing comonomers
Assignee: WR Grace and Co
•
Filing: 1965-04-12
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Granted: 1968-01-30
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Nelson S Marans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:48
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/02; C08G2/10; C08G2/12; C08G2/14; C08G2/16; C08G2/18; C08G2/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A METHOD FOR PRODUCING STABLE POLYOXYMETHYLENE COPOLYMERS WHICH COMPRISES COPOLYMERIZING TRIOXANE AND FROM ABOUT 0.1 TO 5.0 PERCENT BY WEIGHT OF A COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Independent Claim
30 words
A METHOD FOR PRODUCING STABLE POLYOXYMETHYLENE COPOLYMERS WHICH COMPRISES COPOLYMERIZING TRIOXANE AND FROM ABOUT 0.1 TO 5.0 PERCENT BY WEIGHT OF A COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US3115480A
Cited
US3194510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |