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US2587976A
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US
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Method and apparatus for planimetry and quadrature
Assignee: Individual
•
Filing: 1949-08-04
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Granted: 1952-03-04
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Expires: 1969-08-04
Abstract
No abstract record available.
Inventors
- 👤 Ment Jack De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:48
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2149958A
Cited
US2462351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |