Patent US1252289A successfully refreshed from Google Patents.
US1252289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing integral projections on metal plates.
Assignee: Individual
•
Filing: 1917-10-04
•
Granted: 1918-01-01
•
Expires: 1937-10-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Murray Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B21D39/031; B21D39/032; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49908; Y10T29/49915; Y10T29/49936; Y10T403/00; Y10T403/47; Y10T403/472; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041; Y10T83/0414
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1920-12-31 | 1921-07-02 | 1922-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-31 | 1925-07-02 | 1926-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-31 | 1929-07-02 | 1930-01-01 | $7700.00 | Window Closed / Lapsed |