US2604258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pump cylinder
Assignee: Chase Brass and Copper Co Inc
•
Filing: 1949-08-23
•
Granted: 1952-07-22
•
Expires: 1969-08-23
Abstract
No abstract record available.
Inventors
- 👤 John A Murnane
- 👤 Robert L Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:27
CPC Classifications
F; F04; F04B; F04B33/00; F04B33/005; Y; Y10; Y10S; Y10S264/00; Y10S264/76; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US174821A
Cited
US1804284A
Cited
GB190301154A
Cited
US1292905A
Cited
US1578019A
Cited
US1679629A
Cited
US1719153A
Cited
US1872496A
Cited
US2142598A
Cited
US2479398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |