US2518503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric iron
Assignee: BIRTAMN ELECTRIC Co
•
Filing: 1947-04-24
•
Granted: 1950-08-15
•
Expires: 1967-04-24
Abstract
No abstract record available.
Inventors
- 👤 Charles H Sparklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:51
CPC Classifications
D; D06; D06F; D06F75/00; D06F75/08; D06F75/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1606037A
Cited
US1962587A
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US2127083A
Cited
US2270736A
Cited
US2235479A
Cited
US2353151A
Cited
US2422526A
Cited
GB558735A
Cited
US2427945A
Cited
US2403115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |