Patent FR774187A successfully refreshed from Google Patents.
Patent US3549413A successfully refreshed from Google Patents.
US3549413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing filaments comprising coated tungsten wires
Assignee: GEN TECHNOLOGIES CORP
•
Filing: 1969-07-28
•
Granted: 1970-12-22
•
Expires: 1989-07-28
Abstract
No abstract record available.
Inventors
- 👤 Lee C Mccandless
- 👤 James C Withers
- 👤 Charles R Brummett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:19
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/42; C22; C22C; C22C47/00; C22C47/02; C22C47/04; C23C16/32; C23C16/325; C23C16/34; C23C16/38; C23C16/44; C23C16/54; C23C16/545; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/296; Y10T428/298
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1987576A
Cited
US2656283A
Cited
US2854353A
Cited
US2930347A
Cited
US2920006A
Cited
US3188230A
Cited
US3177094A
Cited
US3186735A
Cited
US3365330A
Cited
US3460920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |