US3530281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data storage and readout devices
Assignee: Individual
•
Filing: 1966-09-13
•
Granted: 1970-09-22
•
Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 Wilfred Smeiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:33
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/0672; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/086; G07; G07F; G07F7/00; G07F7/08; G07F7/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508953A
Cited
US2547838A
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US2774060A
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US3044694A
Cited
US3154761A
Cited
US3239815A
Cited
US3387265A
Cited
US3312372A
Cited
US3404382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |