US2257804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint
Assignee: Lord Manufacturing Co
•
Filing: 1939-04-17
•
Granted: 1941-10-07
•
Expires: 1959-04-17
Abstract
No abstract record available.
Inventors
- 👤 Hugh C Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:01
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/50; E04B2001/8254; F16F2236/00; F16F2236/10; Y; Y10; Y10S; Y10S16/00; Y10S16/36; Y10T; Y10T403/00; Y10T403/40; Y10T403/405
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) | 1944-10-06 | 1945-04-07 | 1945-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-06 | 1949-04-07 | 1949-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-06 | 1953-04-07 | 1953-10-07 | $7700.00 | Window Closed / Lapsed |