US2595539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valveless vacuum-operated fluid circulating device for cleaning hollow objects such as teat cups and milk tubes
Assignee: Hall Labs LLC
•
Filing: 1948-04-17
•
Granted: 1952-05-06
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Expires: 1968-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Franklin T Redman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:30
CPC Classifications
A; A01; A01J; A01J7/00; A01J7/02; A01J7/025; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1244552A
Cited
US1262077A
Cited
US1627824A
Cited
US1645356A
Cited
US1715492A
Cited
US2233852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |