Patent US2224431A successfully refreshed from Google Patents.
US2224431A
Expired / Lapsed
US
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Reciprocating carriage for sampling apparatus and the like
Assignee: General Engineering Co Ltd
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Filing: 1939-07-17
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Granted: 1940-12-10
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Expires: 1959-07-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Heginbotham
- 👤 Lewis V Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:35
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-10 | 1944-06-10 | 1944-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-10 | 1948-06-10 | 1948-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-10 | 1952-06-10 | 1952-12-10 | $7700.00 | Window Closed / Lapsed |