US2835692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic isocyanates
Assignee: GAF Chemicals Corp
•
Filing: 1956-07-09
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Granted: 1958-05-20
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Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Bloom Albert
- 👤 Harlan B Freyermuth
- 👤 James B Normington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:55
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/38; C07; C07C; C07C263/00; C07C263/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A METHOD OF RETARDING THE POLYMERIZATION AND DECOMPOSITION OF ORGANIC ISOCYANATES WHICH COMPRISES ADDING THERETO A STABILIZING AMOUNT OF A POLYMERIC ORGANOSILOXANE HAVING THE GENERAL FORMULA:
Claim 2
Independent Claim
26 words
A METHOD OF RETARDING THE POLYMERIZATION AND DECOMPOSITION OF ORGANIC ISOCYANATES WHICH COMPRISES ADDING THERETO A STABILIZING AMOUNT OF A POLYMERIC ORGANOSILOXANE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2437867A
Cited
US2476779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |