US3520110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical isolator for gas feed line
Assignee: Raytheon Co
•
Filing: 1966-12-19
•
Granted: 1970-07-14
•
Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Knauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0006; F03H1/0012; F16; F16L; F16L25/00; F16L25/02; H; H01; H01J; H01J5/00; H01J5/02; H01J5/06; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6606; Y10T137/7287; Y10T137/7498; Y10T137/7501; Y10T137/9682
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |