US2608988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributor control system for liquids
Assignee: PHILADELPHIA VALVE CO
•
Filing: 1947-01-29
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Granted: 1952-09-02
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Expires: 1967-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:35
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/36; B60; B60P; B60P3/00; B60P3/22; B60P3/224; B60P3/2265; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4807; Y10T137/4857; Y10T137/4874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US165925A
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US312158A
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US1085502A
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US2015946A
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US2078384A
Cited
US2160741A
Cited
US2356786A
Cited
US2387531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |