US3207727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing polyoxymethylene
Assignee: Kurashiki Rayon Co Ltd
•
Filing: 1962-07-17
•
Granted: 1965-09-21
•
Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 Matsubayashi Kanji
- 👤 Fujii Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/26; C08G2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A METHOD OF STABILIZING POLYOXYMETHYLENE WHICH COMPRISES REACTING POLYOXYMETHLENE WITH VINYL ETHERS REPRESENTED BY THE FOLLOWING GENERAL FORMULA
Claim 2
Independent Claim
18 words
A METHOD OF STABILIZING POLYOXYMETHYLENE WHICH COMPRISES REACTING POLYOXYMETHLENE WITH VINYL ETHERS REPRESENTED BY THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US2296249A
Cited
US2844561A
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US2893972A
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US2936298A
Cited
GB848660A
Cited
US3087913A
Cited
US3002952A
Cited
FR1272971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |