US3429948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesterurethane elastomers vulcanizable in live steam
Assignee: Compagnie Generale des Etablissements Michelin SCA
•
Filing: 1965-12-20
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Granted: 1969-02-25
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jean-Marie Massoubre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
C; C08; C08L; C08L57/00; C08G; C08G18/00; C08G18/06; C08G18/83; C08G18/86; C08L75/00; C08L75/04; C08L75/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB644829A
Cited
US3225007A
Cited
US2993013A
Cited
US3012987A
Cited
US3100759A
Cited
US3219633A
Cited
US3305503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |