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US3437022A
Expired / Lapsed
US
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Cross-sectional determinant
Assignee: NATHAN HAMONDS JR
•
Filing: 1965-10-04
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Granted: 1969-04-08
•
Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Nathan Hamonds Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/28; G01B11/24; G01B11/25; G01B11/2518; G01B5/00; G01B5/0035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23754E
Cited
US1136236A
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US1736012A
Cited
US2350796A
Cited
US2501405A
Cited
US2747463A
Cited
US2761959A
Cited
US2737080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |