US2622178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating element and method of producing the same
Assignee: Blue Ridge Glass Corp
•
Filing: 1946-04-22
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Granted: 1952-12-16
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Expires: 1966-04-22
Abstract
No abstract record available.
Inventors
- 👤 Glynn Theodore William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:52
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/26; H05B3/265; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US918535A
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AU101011B
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US1431407A
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US1579732A
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US1832466A
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US1842174A
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US1957538A
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US2021661A
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US2119680A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |