US921736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pantograph engraving-machine.
Assignee: Individual
•
Filing: 1907-10-07
•
Granted: 1909-05-18
•
Expires: 1927-10-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph Tweedale Rawsthorne
- 👤 John Pryke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:15
CPC Classifications
B; B44; B44B; B44B3/00; B44B3/001; B44B3/002; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T409/301456
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) | 1912-05-17 | 1912-11-16 | 1913-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-05-17 | 1916-11-16 | 1917-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-05-17 | 1920-11-16 | 1921-05-18 | $7700.00 | Window Closed / Lapsed |