US3449164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical composition and method for the removal of beer stone
Assignee: Nikex Nehezipari Kulkereskedelmi Vallalat
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Filing: 1966-10-26
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Granted: 1969-06-10
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Expires: 1986-10-26
Abstract
No abstract record available.
Inventors
- 👤 Attila Vinkler
- 👤 Janos Cserhati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:41
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C02; C02F; C02F5/00; C02F5/08; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C23; C23G; C23G1/00; C23G1/02
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |