US3520137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket apparatus employing electrolysis
Assignee: Raytheon Co
•
Filing: 1968-11-01
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Granted: 1970-07-14
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Expires: 1988-11-01
Abstract
No abstract record available.
Inventors
- 👤 Daniel D Newman
- 👤 Harold A Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:18
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; B; B63; B63H; B63H11/00; B63H11/12; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/26; B64G1/40; B64G1/401; B64G1/402; B64G1/4021; C; C06; C06B; C06B47/00; C06B47/02; C06B47/12; F02K9/60; F02K9/68; B64G1/28; B64G1/281; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/133
Claims Analysis
Total Claims: 0
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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 |