Patent US2575509A successfully refreshed from Google Patents.
US2575509A
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Ice product and method of manufacturing
Assignee: Icecrafter Trust
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Filing: 1948-02-18
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Granted: 1951-11-20
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Expires: 1968-02-18
Abstract
No abstract record available.
Inventors
- 👤 John R Bayston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:19
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/04; A; A23; A23G; A23G9/00; A23G9/04; A23G9/20; A23G9/52; A23G2220/00; A23G2220/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN ICE PRODUCT CONSISTING OF A FROZEN WATER CONTAINING CARBON DIOXIDE IN A FREE VOLUME RATIO OF BETWEEN 1.33 AND 5 VOLUMES OF GAS TO A GIVEN VOLUME OF WATER, AND AT LEAST .005 VOLUME OF OXYGEN.
Claim 2
Dependent Claim
37 words
AN ICE PRODUCT CONSISTING OF A FROZEN WATER CONTAINING CARBON DIOXIDE IN A FREE VOLUME RATIO OF BETWEEN 1.33 AND 5 VOLUMES OF GAS TO A GIVEN VOLUME OF WATER, AND AT LEAST .005 VOLUME OF OXYGEN.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2361137A
Cited
US2394647A
Cited
US2387921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |