Patent US824920A successfully refreshed from Google Patents.
US2905850A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1957-12-16
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Granted: 1959-09-22
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Arespacochaga Fernando De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:57
CPC Classifications
F; F21; F21V; F21V11/00; F21S; F21S41/00; F21S41/30; F21S41/32; F21S41/322; F21S41/37; F21S41/40; F21S41/43; F21W; F21W2107/00; F21W2107/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182987A
Cited
US2584697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |