US2646720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunbeam receiving and reflecting device
Assignee: Individual
•
Filing: 1951-03-31
•
Granted: 1953-07-28
•
Expires: 1971-03-31
Abstract
No abstract record available.
Inventors
- 👤 Poliansky Alejandro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:09
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; F; F21; F21S; F21S11/00; F24; F24S; F24S30/00; F24S30/40; F24S30/45; F24S30/458; F24S2030/10; F24S2030/13; F24S2030/134; F24S2030/137; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US54118A
Cited
US59438A
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US497079A
Cited
US507999A
Cited
US683088A
Cited
DE326516C
Cited
US1479923A
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US2135997A
Cited
US2471954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |