US3053268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time control and metering system
Assignee: Culligan Inc
•
Filing: 1959-04-23
•
Granted: 1962-09-11
•
Expires: 1979-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Schulze
- 👤 Robert J Jauch
- 👤 Christian W Kruckeberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:36
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86445; Y10T137/86461; Y10T137/86928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US900053A
Cited
US2596330A
Cited
US2744867A
Cited
US2845092A
Cited
US2881803A
Cited
US2863559A
Cited
US2906332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |