US2735251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
dlugosch
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02; A01B73/04; A01B73/044; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32409; Y10T403/32549; Y10T403/32557; Y10T403/32606; Y10T403/32861; Y10T403/32918; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20744; Y10T74/20756
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1244165A
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US1342614A
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US1399999A
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US1623114A
Cited
US1672038A
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US1927458A
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US1963426A
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US2223134A
Cited
US2319755A
Cited
US2620200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |