Patent US2423076A successfully refreshed from Google Patents.
US2423076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making helmets
Assignee: Individual
•
Filing: 1943-02-05
•
Granted: 1947-07-01
•
Expires: 1963-02-05
Abstract
No abstract record available.
Inventors
- 👤 Daly Le Grand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
A; A42; A42C; A42C2/00; A42B; A42B3/00; A42B3/04; A42B3/06; B; B29; B29L; B29L2031/00; B29L2031/48; B29L2031/4807; B29L2031/4814; B29L2031/4821; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1835883A
Cited
US2025772A
Cited
US2123275A
Cited
US2115065A
Cited
US2295855A
Cited
US2312227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |