Patent US2861277A successfully refreshed from Google Patents.
Patent US4307276A successfully refreshed from Google Patents.
Patent US3697431A successfully refreshed from Google Patents.
Patent US3560025A successfully refreshed from Google Patents.
Patent US3889153A successfully refreshed from Google Patents.
Patent US1440993A successfully refreshed from Google Patents.
US1440993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing apparatus
Assignee: Individual
•
Filing: 1920-11-26
•
Granted: 1923-01-02
•
Expires: 1940-11-26
Abstract
No abstract record available.
Inventors
- 👤 Louis B Hasbrouck
- 👤 Henry E Van Ness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:37
CPC Classifications
B; B43; B43L; B43L5/00; B43L5/002
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) | 1926-01-01 | 1926-07-03 | 1927-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-01 | 1930-07-03 | 1931-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-01 | 1934-07-03 | 1935-01-02 | $7700.00 | Window Closed / Lapsed |