US3370982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web cleaning apparatus and method
Assignee: International Business Machines Corp
•
Filing: 1963-10-18
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Granted: 1968-02-27
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Carl P Hayunga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:09
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/50; G11B23/502; G03; G03D; G03D15/00; Y; Y10; Y10T; Y10T83/00; Y10T83/242
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |