US3443620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcement of rubbery polymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-09-03
•
Granted: 1969-05-13
•
Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Byron M Vanderbilt
- 👤 Robert E Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; B; B60; B60C; B60C9/00; B60C9/0028; C08K; C08K9/00; C08K9/04; C08K9/06; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31641
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2892972A
Cited
US2831829A
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US2827099A
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US2885383A
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US2952576A
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US3062242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |