US677590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ellipsograph.
Assignee: Individual
•
Filing: 1901-04-29
•
Granted: 1901-07-02
•
Expires: 1921-04-29
Abstract
No abstract record available.
Inventors
- 👤 Fred Oldfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:49
CPC Classifications
B; B43; B43L; B43L11/00; B43L11/02; B43L11/04; B43L11/041
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) | 1904-07-01 | 1904-12-31 | 1905-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-07-01 | 1908-12-31 | 1909-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-07-01 | 1912-12-31 | 1913-07-02 | $7700.00 | Window Closed / Lapsed |