US2264103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product for softening hard water
Assignee: Procter and Gamble Co
•
Filing: 1936-06-06
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Granted: 1941-11-25
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Expires: 1956-06-06
Abstract
No abstract record available.
Inventors
- 👤 Tucker Nathaniel Beverly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:03
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/04; C11D9/22; C11D9/26; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/105; C02F5/12; C11D3/00; C11D3/16; C11D3/20; C11D3/2075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-11-24 | 1945-05-26 | 1945-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-11-24 | 1949-05-26 | 1949-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-11-24 | 1953-05-26 | 1953-11-25 | $7700.00 | Window Closed / Lapsed |