US3644295A
Expired / Lapsed
US
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Saturated linear polyesters containing a salt of camphorsulfonic acid
Assignee: FMC Corp
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Filing: 1969-05-14
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Granted: 1972-02-22
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Expires: 1989-05-14
Abstract
Abstract A POLYESTER COMPOSITION COMPRISING A SATURATED LINEAR POLYESTER RESIN CONTAINING A MINOR AMOUNT OF AN AMMONIUM OR METAL SALT OF CAMPHORSULFONIC ACID.
Inventors
- 👤 Mary J Stewart
- 👤 John A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |