US3065460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating head
Assignee: International Business Machines Corp
•
Filing: 1957-10-21
•
Granted: 1962-11-20
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Edward E Altenau
- 👤 Theodore W Leverett
- 👤 John E Mcgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:51
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/127; G11B5/17; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1387746A
Cited
US2790966A
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US2612566A
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US2790875A
Cited
US2862781A
Cited
GB763780A
Cited
US2969435A
Cited
US2886651A
Cited
US2937240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |