Patent US3208696A successfully refreshed from Google Patents.
US3208696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel tank
Assignee: Lockheed Martin Corp
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Filing: 1963-08-19
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Granted: 1965-09-28
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Kastan Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/04; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN COMBINATION WITH AN AIRCRAFT WING CELL HAVING SHEAR BEAMS AND UPPER AND LOWER STRUCTURAL PANELS AFFIXED TO SAID SHEAR BEAMS, A FUEL TANK COMPRISING: (A) A FUEL-TANK SHEAR BEAM FOR MOUNTING SAID TANK IN SAID CELL INTERMEDIATE SAID WING-CELL SHEAR BEAMS, SAID FUEL-TANK SHEAR BEAM INCLUDING AN UPPER CAP PORTION AFFIXED DIRECTLY TO SAID UPPER PANEL AND A LOWER CAP PORTION AFFIXED DIRECLY TO SAID LOWER PANEL, SAID FUEL-TANK SHEAR BEAM ALSO INCLUDING UPPER AND LOWER WEB PORTIONS CONNECTED TO SAID UPPER AND LOWER CAP PORTIONS, RESPECTIVELY; (B) SIDE WALL MEANS CONNECTED TO SAID UPPER AND LOWER WEB PORTIONS IN FLUID-TIGHT RELATIONSHIP; AND (C) CLOSED END WALL MEANS CURVED INWARD AND MOUNTED IN SAID SIDE WALL MEANS.
Claim 2
Dependent Claim
118 words
IN COMBINATION WITH AN AIRCRAFT WING CELL HAVING SHEAR BEAMS AND UPPER AND LOWER STRUCTURAL PANELS AFFIXED TO SAID SHEAR BEAMS, A FUEL TANK COMPRISING: (A) A FUEL-TANK SHEAR BEAM FOR MOUNTING SAID TANK IN SAID CELL INTERMEDIATE SAID WING-CELL SHEAR BEAMS, SAID FUEL-TANK SHEAR BEAM INCLUDING AN UPPER CAP PORTION AFFIXED DIRECTLY TO SAID UPPER PANEL AND A LOWER CAP PORTION AFFIXED DIRECLY TO SAID LOWER PANEL, SAID FUEL-TANK SHEAR BEAM ALSO INCLUDING UPPER AND LOWER WEB PORTIONS CONNECTED TO SAID UPPER AND LOWER CAP PORTIONS, RESPECTIVELY; (B) SIDE WALL MEANS CONNECTED TO SAID UPPER AND LOWER WEB PORTIONS IN FLUID-TIGHT RELATIONSHIP; AND (C) CLOSED END WALL MEANS CURVED INWARD AND MOUNTED IN SAID SIDE WALL MEANS.
References Cited (Backward Citations)
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |