US2090156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice melter for third rails
Assignee: Individual
•
Filing: 1936-01-15
•
Granted: 1937-08-17
•
Expires: 1956-01-15
Abstract
No abstract record available.
Inventors
- 👤 William P Scholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:26
CPC Classifications
E; E01; E01B; E01B19/00; H; H02; H02G; H02G7/00; H02G7/16; Y; Y02; Y02A; Y02A30/00; Y02A30/30
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) | 1940-08-16 | 1941-02-15 | 1941-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-16 | 1945-02-15 | 1945-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-16 | 1949-02-15 | 1949-08-17 | $7700.00 | Window Closed / Lapsed |