US2982850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lampholder support and connecting bracket
Assignee: PITTSBURGH REFLECTOR Co
•
Filing: 1956-07-05
•
Granted: 1961-05-02
•
Expires: 1976-07-05
Abstract
No abstract record available.
Inventors
- 👤 Robert W Lister
- 👤 Walter W Stubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:25
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0075; F21V19/008; F21V21/00; F21V21/005; F21V17/00; F21V17/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2316404A
Cited
US2408783A
Cited
GB607051A
Cited
US2456903A
Cited
US2831962A
Cited
US2767307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |