US3205207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur vulcanizable oxetane and oxetane-oxirane copolymers
Assignee: Hercules Powder Co
•
Filing: 1962-01-29
•
Granted: 1965-09-07
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Vandenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/16; C08G65/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AN ESSENTIALLY LINEAR, SULFUR-VULCANIZABLE POLYETHER COPOLYMER, (1) THE REPEATING UNITS OF WHICH ARE SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
19 words
AN ESSENTIALLY LINEAR, SULFUR-VULCANIZABLE POLYETHER COPOLYMER, (1) THE REPEATING UNITS OF WHICH ARE SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US3112280A
Cited
US2983703A
Cited
US2870100A
Cited
US2891837A
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US2924607A
Cited
US3031439A
Cited
US2933480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |