US2450336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical coupling device particularly for electric heating appliance stands
Assignee: Individual
•
Filing: 1946-02-04
•
Granted: 1948-09-28
•
Expires: 1966-02-04
Abstract
No abstract record available.
Inventors
- 👤 Hall Thomas John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:15
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/21; A47J27/21008; A47J27/2105; D; D06; D06F; D06F79/00; D06F79/02; D06F79/023; D06F79/026; Y; Y10; Y10S; Y10S439/00; Y10S439/919
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1421850A
Cited
US1994877A
Cited
US2020110A
Cited
US2054714A
Cited
US2148083A
Cited
US2278994A
Cited
US2293764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |