US3426119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covering of rolls with fluorinated ethylene polymers and the like
Assignee: Fluorodynamics Inc
•
Filing: 1965-06-23
•
Granted: 1969-02-04
•
Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Frank M Chapman
- 👤 Harry S Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:55
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/22; B29C53/00; B29C53/16; B29C53/20; B29C55/24; B29C63/00; B29C63/0047; B29C63/0065; B29C63/0069; B29C63/18; B29C63/38; B29C63/42; B29K; B29K2027/00; B29K2027/12; B29L; B29L2031/00; B29L2031/32; B29L2031/324; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2256156A
Cited
US2346613A
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US3050786A
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US3010194A
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GB867569A
Cited
US3075248A
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US3098285A
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US3225129A
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US3196194A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |