Patent US3508522A successfully refreshed from Google Patents.
US3508522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined doctoring means
Assignee: Lockheed Martin Corp
•
Filing: 1966-08-08
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Granted: 1970-04-28
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Paul Duquette
- 👤 Maurice O St Onge
- 👤 Peter Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:29
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US326687A
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US765507A
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US1752972A
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US2162403A
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US2131512A
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US2237068A
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US2289753A
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US2354033A
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US3207128A
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US3271187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |