US2588072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush tank valve operating mechanism
Assignee: CHICAGO SPECIALTY Manufacturing Co Inc
•
Filing: 1949-04-22
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Granted: 1952-03-04
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Expires: 1969-04-22
Abstract
No abstract record available.
Inventors
- 👤 Bachli Herman
- 👤 Harry S Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:06
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/02; E03D5/09; E03D5/094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |