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US2673781A
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Assignee: Heisler Manufacturing Co
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Filing: 1949-09-21
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Granted: 1954-03-30
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Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Harry F Heisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
B; B25; B25H; B25H3/00; B25H3/02; B25H3/021; B25H3/023; B25H3/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US735614A
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US860658A
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US1926166A
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US1921251A
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US1995335A
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US2078581A
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US2078813A
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US2322199A
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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) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |