US2575509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice product and method of manufacturing
Assignee: Icecrafter Trust
•
Filing: 1948-02-18
•
Granted: 1951-11-20
•
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 01:38
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)
US850607A
Cited
US1743375A
Cited
FR798523A
Cited
DE703569C
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 |