US3544120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction welding apparatus having improved hydrostatic bearing arrangement
Assignee: Rockwell-Standard Corp
•
Filing: 1968-10-23
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Granted: 1970-12-01
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Expires: 1988-10-23
Abstract
No abstract record available.
Inventors
- 👤 Alex F Stamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:59
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0603; F16C32/0614; F16C32/0622; B; B23; B23K; B23K20/00; B23K20/12; B23K20/121; F16C32/0681; F16C32/0696; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241; Y10T279/1249; Y10T279/1258; Y10T82/00; Y10T82/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3499692A
Cited
US3177745A
Cited
US3202432A
Cited
US3460734A
Cited
US3392985A
Cited
US3380641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |