US3769370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of polyolefin rubber, 1,2-polybutadiene and a fluorinatedpolymer
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1971-06-14
•
Granted: 1973-10-30
•
Expires: 1991-06-14
Abstract
Abstract A BLEND OF A POLYOLEFIN RUBBER, A LOW MOLECULAR WEIGHT 1,2-BUTADIENE RESIN, A POLYFLUORINATED RESIN AND, IF DESIRED, AN INERT FILLER, SUCH AS SILICA, CARBON BLACK, ALUMINA, ECT., IS PEROXIDE CURED TO PRODUCE A VULCANIZED ELASTOMER HAVING HIGH TENSILE STRENGTH AND ELONGATION PROPERTIES FOR USE IN CORROSIVE ENVIRONMENTS, SUCH AS HYDRAZINE, OIL WELLS, ETC.
Inventors
- 👤 J Martin
- 👤 J Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:31
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K3/34; C08K5/00; C08K5/04; C08K5/14; C08L23/00; C08L23/02; C08L23/16; C08L23/18; C08L23/20; C08L23/22; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L9/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |