Patent US2139207A successfully refreshed from Google Patents.
Patent US2653784A successfully refreshed from Google Patents.
US2653784A
Expired / Lapsed
US
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Spring lock lamp holder
Assignee: Individual
•
Filing: 1949-02-08
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Granted: 1953-09-29
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Expires: 1969-02-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Wasselle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:54
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/26; F21S; F21S8/00; F21S8/04; F21V21/02; F21V21/03; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |