US3291865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic polymeric phosphonitrilate compositions
Assignee: Olin Corp
•
Filing: 1964-03-30
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Granted: 1966-12-13
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Ehrenfried H Kober
- 👤 Henry F Lederle
- 👤 Gerhard F Ottmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A CYCLIC POLYMERIC PHOSPHONITRILATE COMPOSITION OF THE FORMULA:
Claim 2
Dependent Claim
8 words
A CYCLIC POLYMERIC PHOSPHONITRILATE COMPOSITION OF THE FORMULA:
References Cited (Backward Citations)
US2192921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |