US2547823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator system
Assignee: Individual
•
Filing: 1944-05-10
•
Granted: 1951-04-03
•
Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Josephian William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/12; B67D1/1252; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569; Y10T137/2572; Y10T137/4673; Y10T137/4857; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7821
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US518513A
Cited
US1304754A
Cited
US2202313A
Cited
US2176580A
Cited
US2270304A
Cited
US2329363A
Cited
US2306382A
Cited
US2320886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |