US2551747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting apparatus
Assignee: Individual
•
Filing: 1949-11-22
•
Granted: 1951-05-08
•
Expires: 1969-11-22
Abstract
No abstract record available.
Inventors
- 👤 Ille Vincent John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:14
CPC Classifications
B; B43; B43L; B43L9/00; B43L9/02; B43L9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US964785A
Cited
US1007038A
Cited
US1084973A
Cited
US1191725A
Cited
CH155485A
Cited
US1948952A
Cited
US2045360A
Cited
US2312154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |