US2749527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric light bulb having insulation piercing contacts
Assignee: Individual
•
Filing: 1953-09-21
•
Granted: 1956-06-05
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Adolph W Gast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:28
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46; F; F21; F21V; F21V21/00; F21V21/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR466469A
Cited
GB397305A
Cited
US2031746A
Cited
US2101277A
Cited
US2079801A
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US2269073A
Cited
US2475243A
Cited
US2657367A
Cited
US2636069A
Cited
US2483351A
Cited
US2587239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |