US3277044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stabilizing high molecular polyoxymethylenes
Assignee: Hoechst AG
•
Filing: 1961-01-23
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Granted: 1966-10-04
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Weissermel Klaus
- 👤 Hermann Hans Dieter
- 👤 Heuck Claus
- 👤 Kullmar Klaus
- 👤 Mauz Otto
- 👤 Reiher Manfred
- 👤 Winter Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
OXIDATION-STABILIZED, HIGH MOLECULAR WEIGHT POLYOXYMETHYLENE WHICH CONTAINS 0.001 TO 5% BY WEIGHT OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
18 words
OXIDATION-STABILIZED, HIGH MOLECULAR WEIGHT POLYOXYMETHYLENE WHICH CONTAINS 0.001 TO 5% BY WEIGHT OF A COMPOUND OF THE FORMULA
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |