US2804118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic bellows type jacks
Assignee: Individual
•
Filing: 1954-09-13
•
Granted: 1957-08-27
•
Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Irvin L Bayerkohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:11
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/06; B21D1/08; Y; Y10; Y10S; Y10S72/00; Y10S72/705
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1109499A
Cited
US1163385A
Cited
US1752101A
Cited
US1745959A
Cited
US1971975A
Cited
FR807389A
Cited
US2151063A
Cited
US2442939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |