Patent US3351374A successfully refreshed from Google Patents.
US3351374A
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US
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Armor construction
Assignee: Lockheed Martin Corp
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Filing: 1963-07-01
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Granted: 1967-11-07
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Robert W Forsyth
- 👤 John P Forsyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:33
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; F41H7/04; F41H7/044; B; B62; B62D; B62D29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE287402C
Cited
US663961A
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US787065A
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GB191512957A
Cited
FR503197A
Cited
US2382862A
Cited
US2389579A
Cited
US2642542A
Cited
US2744042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |