Patent US2643437A successfully refreshed from Google Patents.
US2643437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced silica textile
Assignee: H I THOMPSON Co
•
Filing: 1949-09-10
•
Granted: 1953-06-30
•
Expires: 1969-09-10
Abstract
No abstract record available.
Inventors
- 👤 Parker Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:16
CPC Classifications
C; C03; C03C; C03C13/00; C03C13/005; D; D02; D02G; D02G3/00; D02G3/02; D02G3/16; D02G3/18; D02G3/182; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249922; Y10T428/31504; Y10T428/31678; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/313; Y10T442/40; Y10T442/425; Y10T442/438
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
A TEXTILE MATERIAL FORMED OF INTERLACED SILICA FILAMENTS AND OTHER REINFORCING FILAMENTS.
References Cited (Backward Citations)
US2133237A
Cited
US2135057A
Cited
US2261148A
Cited
US2132702A
Cited
US2350504A
Cited
US2461841A
Cited
US2491761A
Cited
US2458243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |