US3347837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for isolating carboxylic acidbearing chloroprene polymers
Assignee: EIDP Inc
•
Filing: 1964-11-17
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Granted: 1967-10-17
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Expires: 1984-11-17
Abstract
No abstract record available.
Inventors
- 👤 Smith John Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:36
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/14; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/14; C08F236/16; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
IN A PROCESS FOR ISOLATING A
Claim 2
Dependent Claim
6 words
IN A PROCESS FOR ISOLATING A
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |