US3334056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes from phosphorus containing isocyanates
Assignee: Bayer AG
•
Filing: 1966-02-11
•
Granted: 1967-08-01
•
Expires: 1986-02-11
Abstract
No abstract record available.
Inventors
- 👤 Fischer Peter
- 👤 Holtschmidt Hans
- 👤 Oertel Gunther
- 👤 Braun Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/776; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4062; C07F9/4065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A FLAME RESISTNAT POLYURETHANE PLASTIC COMPOSITION OBTAINED FROM THE REACTION OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
16 words
A FLAME RESISTNAT POLYURETHANE PLASTIC COMPOSITION OBTAINED FROM THE REACTION OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |