US2626882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing fuel cell
Assignee: Uniroyal Inc
•
Filing: 1951-06-26
•
Granted: 1953-01-27
•
Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Roscoe H Gerke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A BULLET-SEALING FUEL CELL, A SEALANT LAYER COMPRISING A ZINC OXIDE-FREE VULCANIZED OF A NON-CRYSTALLIZABLE SYNTHETIC RUBBER SELECTED FROM THE GROUP CONSISTING OF RUBBERY COPOLYMERS OF BUTADIENE AND STYRENE, RUBBERY COPOLYMERS OF BUTADIENE AND ISOPRENE, AND RUBBERY TERNARY COPOLYMERS OF BUTADIENE, ISOPRENE AND BUTYL ACRYLATE, SAID SYNTHETIC RUBBERY HAVING IN THE UNCURED STATE A COHESIVE ENERGY DENSITY OF FROM 56 TO 72, FROM 0.1 TO 0.4% OF SULFUR, FROM 1 TO 5% OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, CALCIUM AND BARIUM, FROM 5 TO 25% OF RUBBER-REINFORCING CARBON BLACK HAVING AN AVERAGE PARTICLE SIZE LESS THAN 0.070 MICRON, AND FROM 0.5 TO 4% OF AN ORGANIC ACCEL-
Claim 2
Dependent Claim
115 words
IN A BULLET-SEALING FUEL CELL, A SEALANT LAYER COMPRISING A ZINC OXIDE-FREE VULCANIZED OF A NON-CRYSTALLIZABLE SYNTHETIC RUBBER SELECTED FROM THE GROUP CONSISTING OF RUBBERY COPOLYMERS OF BUTADIENE AND STYRENE, RUBBERY COPOLYMERS OF BUTADIENE AND ISOPRENE, AND RUBBERY TERNARY COPOLYMERS OF BUTADIENE, ISOPRENE AND BUTYL ACRYLATE, SAID SYNTHETIC RUBBERY HAVING IN THE UNCURED STATE A COHESIVE ENERGY DENSITY OF FROM 56 TO 72, FROM 0.1 TO 0.4% OF SULFUR, FROM 1 TO 5% OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, CALCIUM AND BARIUM, FROM 5 TO 25% OF RUBBER-REINFORCING CARBON BLACK HAVING AN AVERAGE PARTICLE SIZE LESS THAN 0.070 MICRON, AND FROM 0.5 TO 4% OF AN ORGANIC ACCEL-
References Cited (Backward Citations)
USRE21572E
Cited
US2287774A
Cited
US2388169A
Cited
US2497123A
Cited
US2461953A
Cited
US2477336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |