US2509294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water cooler
Assignee: Individual
•
Filing: 1947-07-21
•
Granted: 1950-05-30
•
Expires: 1967-07-21
Abstract
No abstract record available.
Inventors
- 👤 Fruen John Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:20
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064044A
Cited
US1708625A
Cited
US1757638A
Cited
US2039188A
Cited
US2064141A
Cited
US2108898A
Cited
US2365786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |