Patent US5472442A successfully refreshed from Google Patents.
US2497146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric sealing iron
Assignee: Individual
•
Filing: 1947-11-19
•
Granted: 1950-02-14
•
Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 Warren William Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1065131A
Cited
US1503890A
Cited
US1616544A
Cited
US1674047A
Cited
US1714147A
Cited
GB322418A
Cited
US1926520A
Cited
US2292700A
Cited
US2304559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |