Patent US1027337A successfully refreshed from Google Patents.
US1027337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating device.
Assignee: VULCAN ELECTRIC HEATING Co
•
Filing: 1909-01-04
•
Granted: 1912-05-21
•
Expires: 1929-01-04
Abstract
No abstract record available.
Inventors
- 👤 Frank J Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:15
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0338; B23K3/0353
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1915-05-21 | 1915-11-20 | 1916-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-05-21 | 1919-11-20 | 1920-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-05-21 | 1923-11-20 | 1924-05-21 | $7700.00 | Window Closed / Lapsed |