US3513144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene fibrous powders
Assignee: Daikin Industries Ltd
•
Filing: 1969-04-03
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Granted: 1970-05-19
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Expires: 1989-04-03
Abstract
No abstract record available.
Inventors
- 👤 Yutaka Kometani
- 👤 Shun Koizumi
- 👤 Katuo Kubota
- 👤 Takeaki Nakazima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:27
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/122; C08J2327/00; C08J2327/02; C08J2327/12; C08J2327/18; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913
Claims Analysis
Total Claims: 0
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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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |