US3324088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for vulcanization of elastomers
Assignee: Wyeth Holdings LLC
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Filing: 1966-03-17
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Granted: 1967-06-06
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Expires: 1986-03-17
Abstract
No abstract record available.
Inventors
- 👤 Waldron Thomas Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/0008; C08K5/0025; C08K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN THE PROCESS OF COMPOUNDING AND CURING A SYNTHETIC, RUBBER-LIKE, VULCANIZABLE, ACTIVE-HALOGEN CONTAINING ELASTOMERIC POLYMER; THE IMPROVEMENT WHICH COMPRISES: DURING SAID COMPOUNDING, DISTRUBUTING THROUGH SAID POLYMER A CURING AGENT CONSISTING ESSENTIALLY OF FROM ABOUT ONE TO ABOUT TWENTY PARTS PER 100 PARTS OF COPOLYMER OF AT LEAST ONE AMMONIUM SALT OF AN ORGANIC CARBOXYLIC ACID HAVING A PKA VALUE OF AT LEAST THREE.
Claim 2
Dependent Claim
63 words
IN THE PROCESS OF COMPOUNDING AND CURING A SYNTHETIC, RUBBER-LIKE, VULCANIZABLE, ACTIVE-HALOGEN CONTAINING ELASTOMERIC POLYMER; THE IMPROVEMENT WHICH COMPRISES: DURING SAID COMPOUNDING, DISTRUBUTING THROUGH SAID POLYMER A CURING AGENT CONSISTING ESSENTIALLY OF FROM ABOUT ONE TO ABOUT TWENTY PARTS PER 100 PARTS OF COPOLYMER OF AT LEAST ONE AMMONIUM SALT OF AN ORGANIC CARBOXYLIC ACID HAVING A PKA VALUE OF AT LEAST THREE.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |