Patent US3429844A successfully refreshed from Google Patents.
US3429844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyvinyl fluoride
Assignee: Diamond Shamrock Corp
•
Filing: 1966-02-11
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Granted: 1969-02-25
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Expires: 1986-02-11
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Neros
- 👤 Charles P Tomba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D127/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2861052A
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US2935491A
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US3281381A
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US3242133A
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US3081208A
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US3285868A
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US3139470A
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US3337495A
Cited
US3320206A
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 |