Patent US2005481A successfully refreshed from Google Patents.
Patent US2811641A successfully refreshed from Google Patents.
Patent EP0525762A2 successfully refreshed from Google Patents.
Patent US409170A successfully refreshed from Google Patents.
Patent US657153A successfully refreshed from Google Patents.
US657153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type-writing machine.
Assignee: DENSMORE TYPEWRITER Co
•
Filing: 1899-07-01
•
Granted: 1900-09-04
•
Expires: 1919-07-01
Abstract
No abstract record available.
Inventors
- 👤 Walter J Barron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:19
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/003
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) | 1903-09-04 | 1904-03-05 | 1904-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-09-04 | 1908-03-05 | 1908-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-09-04 | 1912-03-05 | 1912-09-04 | $7700.00 | Window Closed / Lapsed |