Patent US1750418A successfully refreshed from Google Patents.
US1750418A
Expired / Lapsed
US
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Etching and decorating metal surfaces
Assignee: WADSWORTH WATCH CASE CO
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Filing: 1928-12-05
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Granted: 1930-03-11
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Expires: 1948-12-05
Abstract
No abstract record available.
Inventors
- 👤 James C Mcfarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:10
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/02; A; A44; A44C; A44C27/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12993
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) | 1933-03-10 | 1933-09-09 | 1934-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-03-10 | 1937-09-09 | 1938-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-03-10 | 1941-09-09 | 1942-03-11 | $7700.00 | Window Closed / Lapsed |