US1537227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dial with universal connections
Assignee: DE WITTLA FRANCE Co
•
Filing: 1924-06-26
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Granted: 1925-05-12
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Expires: 1944-06-26
Abstract
No abstract record available.
Inventors
- 👤 Witt William P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:37
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; Y; Y10; Y10S; Y10S16/00; Y10S16/30; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32131; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 0
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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) | 1928-05-11 | 1928-11-10 | 1929-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-05-11 | 1932-11-10 | 1933-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-05-11 | 1936-11-10 | 1937-05-12 | $7700.00 | Window Closed / Lapsed |