US2518683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated hot plate
Assignee: Individual
•
Filing: 1946-09-07
•
Granted: 1950-08-15
•
Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 Ray E Haines
- 👤 John V Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:53
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/12; H05B6/1209; Y; Y02; Y02B; Y02B40/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US891657A
Cited
US1052119A
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US1413053A
Cited
US1739617A
Cited
US2177173A
Cited
US2255500A
Cited
US2321704A
Cited
US2374662A
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 |