US3041668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for forming sheet plastics
Assignee: Lockheed Martin Corp
•
Filing: 1956-01-19
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Granted: 1962-07-03
•
Expires: 1976-01-19
Abstract
No abstract record available.
Inventors
- 👤 Louis F Bonza
- 👤 Andrew J Byrne
- 👤 Bruce W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:58
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2142445A
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US2367642A
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US2365637A
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US2408245A
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US2440499A
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US2462940A
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US2515093A
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US2599554A
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US2648099A
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US2750625A
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US2662248A
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US2750624A
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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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |