US3299187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus-containing polyisocyanates of pentaerythritol
Assignee: Olin Corp
•
Filing: 1963-11-01
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Granted: 1967-01-17
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Rudi F W Ratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:25
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/564; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657136; C07F9/6574; C07F9/65746; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/776
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
PHOSPHORUS CONTAINING POLYISOCYANATES HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
PHOSPHORUS CONTAINING POLYISOCYANATES HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |