US3477976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester resins from methy-cyclohexene tricarboxylic acid,methylcyclohexane tricarboxylic acid or anhydride thereof and process of making the same
Assignee: Mitsubishi Chemical Corp
•
Filing: 1968-03-20
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Granted: 1969-11-11
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Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Susumu Nakamuro
- 👤 Tadashi Shibazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:41
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/137; C09; C09D; C09D167/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2562878A
Cited
US2686164A
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US2915486A
Cited
US3077459A
Cited
US3223666A
Cited
US3412056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |