Patent US3437784A successfully refreshed from Google Patents.
US3535002A
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Tubular axle structure and method of making
Assignee: Boeing North American Inc
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Filing: 1969-06-03
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Granted: 1970-10-20
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Expires: 1989-06-03
Abstract
No abstract record available.
Inventors
- 👤 Alex F Stamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:03
CPC Classifications
B; B60; B60B; B60B35/00; B60B35/02; B60B35/04; B21; B21D; B21D53/00; B21D53/88; B21D53/90; B60B35/12; B60B35/16; F; F16; F16H; F16H57/00; F16H57/02; B60B2310/00; B60B2310/20; B60B2310/206; B60B2310/208; B60B2310/2082; B60B2310/228; B60B2310/30; B60B2310/302; B60B2310/3025; B60B2360/00; B60B2360/10; B60B2360/102; B60B2360/14; B60B2360/141; B60G; B60G2206/00; B60G2206/01; B60G2206/012; B60Y; B60Y2200/00; B60Y2200/10; B60Y2200/14; B60Y2200/147; F16H2057/02017; F16H2057/02039; F16H2057/02043; F16H2057/02052; F16H2057/02069; F16H2057/02073; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186; Y10T74/2188
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |