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US2415181A
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Air cylinder
Assignee: Gisholt Machine Co
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Filing: 1943-12-21
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Granted: 1947-02-04
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Expires: 1963-12-21
Abstract
No abstract record available.
Inventors
- 👤 Charles H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:37
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/302; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US174280A
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US1334503A
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US1284225A
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US1684063A
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US1656149A
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US1851723A
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US1934411A
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US2107357A
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US2294331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-03 | 1950-08-05 | 1951-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-03 | 1954-08-05 | 1955-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-03 | 1958-08-05 | 1959-02-04 | $7700.00 | Window Closed / Lapsed |