Patent US3080258A successfully refreshed from Google Patents.
US3080258A
Expired / Lapsed
US
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Filling of polytetrafluoroethylene
Assignee: Polymer Corp
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Filing: 1960-01-27
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Granted: 1963-03-05
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 William J Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:05
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/006; C; C08; C08K; C08K9/00; C08K9/08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/02; D01F6/08; D01F6/12; B29K; B29K2105/00; B29K2105/25; B29K2105/251; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/2998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A FILLER IN POWER FORM FOR INCORPORATION IN UNSINTERED POLYTETAFLUOROETHYLENE, SAID FILLER COMPRISING PARTICLES OF A SOLID FILLER MATERIAL HAVING A SOFTENING POINT HIGHER THAN THE TRANSITION TEMPERATURE OF POLYTETRAFLUOROETHYLENE, THE PARTICLES BEING INDIVIDUALLY COATED WITH SINTERED POLYTETRAFLUROETHYLENE.
Claim 2
Dependent Claim
38 words
A FILLER IN POWER FORM FOR INCORPORATION IN UNSINTERED POLYTETAFLUOROETHYLENE, SAID FILLER COMPRISING PARTICLES OF A SOLID FILLER MATERIAL HAVING A SOFTENING POINT HIGHER THAN THE TRANSITION TEMPERATURE OF POLYTETRAFLUOROETHYLENE, THE PARTICLES BEING INDIVIDUALLY COATED WITH SINTERED POLYTETRAFLUROETHYLENE.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |