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Patent US2210554A successfully refreshed from Google Patents.
US2210554A
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Spotlight
Assignee: CHARLES L BECKMAN
•
Filing: 1939-01-17
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Granted: 1940-08-06
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Expires: 1959-01-17
Abstract
No abstract record available.
Inventors
- 👤 John B Palermo
- 👤 Paster William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:46
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/02; F21V5/00; F21V5/008; F21V5/04; F21V5/048; F21V9/00; F21V9/40; F21V14/00; F21V14/06; F21W; F21W2131/00; F21W2131/40; F21W2131/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-08-06 | 1944-02-05 | 1944-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-06 | 1948-02-05 | 1948-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-06 | 1952-02-05 | 1952-08-06 | $7700.00 | Window Closed / Lapsed |