US3436015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical computer and plot board
Assignee: Individual
•
Filing: 1967-07-13
•
Granted: 1969-04-01
•
Expires: 1987-07-13
Abstract
No abstract record available.
Inventors
- 👤 Carson Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:32
CPC Classifications
G; G06; G06G; G06G5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US235703A
Cited
US770552A
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US773675A
Cited
US2097835A
Cited
US2629184A
Cited
US2502707A
Cited
US2649790A
Cited
GB728060A
Cited
US2703548A
Cited
AT198977B
Cited
US3281071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |