US2733918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
fischer
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:10
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/50; E05F15/53; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T292/68; Y10T292/696; Y10T292/699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1684980A
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US1880850A
Cited
US1854768A
Cited
US1920868A
Cited
US2131415A
Cited
GB456416A
Cited
US2276338A
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US2466855A
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US2558867A
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US2586442A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |