Patent US2810709A successfully refreshed from Google Patents.
US2810709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-stable pure gum butyl vulcanizates
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-06-25
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Granted: 1957-10-22
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Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 Lawrence T Eby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A COMPOSITION OF MATTER COMPRISING A CURED LOW UNSATURATION COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN AND A MINOR PROPORTION OF A DIOLEFIN CONTAINING 0.1 TO 2% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF P-DIMETHYLIMINOAZOBENZENE, 4-DIMETHYLAMINOBENZENE 1-AZO-1-NAPHTHALENE, PARAHYDROXYAZOBENZENE, 2,4-DINITRO-DIPHENYLAMINE, 2-AMINO-4-NITROPHENOL, AND DIBETANAPHTHOL.
Claim 2
Dependent Claim
47 words
A COMPOSITION OF MATTER COMPRISING A CURED LOW UNSATURATION COPOLYMER OF A MAJOR PROPORTION OF AN ISOOLEFIN AND A MINOR PROPORTION OF A DIOLEFIN CONTAINING 0.1 TO 2% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF P-DIMETHYLIMINOAZOBENZENE, 4-DIMETHYLAMINOBENZENE 1-AZO-1-NAPHTHALENE, PARAHYDROXYAZOBENZENE, 2,4-DINITRO-DIPHENYLAMINE, 2-AMINO-4-NITROPHENOL, AND DIBETANAPHTHOL.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |