Patent US2575934A successfully refreshed from Google Patents.
US3517899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized aircraft food and beverage service
Assignee: Lockheed Martin Corp
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Filing: 1968-04-04
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Granted: 1970-06-30
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Expires: 1988-04-04
Abstract
No abstract record available.
Inventors
- 👤 Richard I Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:55
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/0007; A; A47; A47B; A47B77/00; A47B77/02; B30; B30B; B30B9/00; B30B9/30; B30B9/3003; B30B9/3021; A47B31/00; A47B2031/002; B62; B62B; B62B2202/00; B62B2202/67
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |