Patent US1255985A successfully refreshed from Google Patents.
US1255985A
Expired / Lapsed
US
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Heating element for buttering devices.
Assignee: Holcomb & Hoke Manufacturing Co
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Filing: 1915-12-13
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Granted: 1918-02-12
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Expires: 1935-12-13
Abstract
No abstract record available.
Inventors
- 👤 George L Chatfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:24
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; H05B1/0258; H05B1/0261; H05B2203/00; H05B2203/002; H05B2203/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-02-11 | 1921-08-13 | 1922-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-02-11 | 1925-08-13 | 1926-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-02-11 | 1929-08-13 | 1930-02-12 | $7700.00 | Window Closed / Lapsed |