Patent US2513094A successfully refreshed from Google Patents.
Patent US2734227A successfully refreshed from Google Patents.
Patent US3212623A successfully refreshed from Google Patents.
Patent US2477854A successfully refreshed from Google Patents.
Patent US2102487A successfully refreshed from Google Patents.
US2102487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defrosting screen
Assignee: Joh Jacob Rieter und Cie AG
•
Filing: 1935-09-27
•
Granted: 1937-12-14
•
Expires: 1955-09-27
Abstract
No abstract record available.
Inventors
- 👤 Schwarz Sophie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:40
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84
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) | 1940-12-13 | 1941-06-14 | 1941-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-13 | 1945-06-14 | 1945-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-13 | 1949-06-14 | 1949-12-14 | $7700.00 | Window Closed / Lapsed |