US1397785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrotype material and method of forming same
Assignee: Individual
•
Filing: 1921-03-02
•
Granted: 1921-11-22
•
Expires: 1941-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jr George U Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:44
CPC Classifications
C; C25; C25D; C25D1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12632; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
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) | 1924-11-21 | 1925-05-23 | 1925-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-11-21 | 1929-05-23 | 1929-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-11-21 | 1933-05-23 | 1933-11-22 | $7700.00 | Window Closed / Lapsed |