US2345650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skeletonized structure
Assignee: Individual
•
Filing: 1940-10-12
•
Granted: 1944-04-04
•
Expires: 1960-10-12
Abstract
No abstract record available.
Inventors
- 👤 Charles W Attwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; B62D33/044; E; E04; E04G; E04G7/00; E04G7/02; E04G7/26; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/9687; F; F16; F16B; F16B37/00; F16B37/04; F16B37/045; F16B37/046; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/97
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) | 1947-04-04 | 1947-10-04 | 1948-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-04 | 1951-10-04 | 1952-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-04 | 1955-10-04 | 1956-04-04 | $7700.00 | Window Closed / Lapsed |