Patent US3429937A successfully refreshed from Google Patents.
US3429937A
Expired / Lapsed
US
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Fluorocarbon derivatives of paraffin wax
Assignee: Texaco Inc
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Filing: 1965-06-15
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Granted: 1969-02-25
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Expires: 1985-06-15
Abstract
No abstract record available.
Inventors
- 👤 William D Blackley
- 👤 William R Siegart
- 👤 Harry Chafetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:52
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; C; C09; C09D; C09D191/00; C09D191/06; C09D191/08; C10; C10G; C10G73/00; C10G73/38; D06M13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/31504; Y10T428/31971; Y10T428/31993; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2122278A
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 |