US2966324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting bracket
Assignee: McGraw Edison Co
•
Filing: 1955-10-04
•
Granted: 1960-12-27
•
Expires: 1975-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ruth W Heinzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:40
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/086; F21V; F21V21/00; F21V21/10; F21V21/108; E; E04; E04H; E04H12/00; E04H12/24; F21W; F21W2131/00; F21W2131/10; F21W2131/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636327A
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US738163A
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US1760323A
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US1725475A
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US1866530A
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US2608369A
Cited
US2653782A
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US2696357A
Cited
US2731227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |