US2482078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine concentration limit indicator for chlorinating systems
Assignee: US Filter Wallace and Tiernan Inc
•
Filing: 1946-07-13
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Granted: 1949-09-13
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Expires: 1966-07-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/763; G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702734A
Cited
US1450023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |