Patent US2454886A successfully refreshed from Google Patents.
US2454886A
Expired / Lapsed
US
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Prevention of mist and frost on glass and similar sheet material
Assignee: Individual
•
Filing: 1943-05-17
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Granted: 1948-11-30
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Expires: 1963-05-17
Abstract
No abstract record available.
Inventors
- 👤 Sapiro Reuben Hillel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:53
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C09; C09K; C09K3/00; C09K3/18; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/283; Y10T428/2852; Y10T428/2896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE300681C
Cited
US1213368A
Cited
US1369708A
Cited
US1466888A
Cited
US1705453A
Cited
US1865497A
Cited
GB320374A
Cited
US1900540A
Cited
US1977545A
Cited
US1943268A
Cited
US1988584A
Cited
US2118262A
Cited
US2101472A
Cited
US2139866A
Cited
US2292097A
Cited
US2313570A
Cited
US2368583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |