US3530728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conical liquid bearing assembly
Assignee: Kearfott Guidance and Navigation Corp
•
Filing: 1968-08-08
•
Granted: 1970-09-29
•
Expires: 1988-08-08
Abstract
No abstract record available.
Inventors
- 👤 John L Evans
- 👤 Jay Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:07
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/107; G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; G01C19/20; F16C2210/00; F16C2210/08; F16C2370/00; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1598321A
Cited
US2581965A
Cited
US2980473A
Cited
US3018142A
Cited
US3262744A
Cited
US3364582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |