US2614329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protractor
Assignee: Individual
•
Filing: 1951-05-22
•
Granted: 1952-10-21
•
Expires: 1971-05-22
Abstract
No abstract record available.
Inventors
- 👤 Gustav A Almorth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:05
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/02; B; B43; B43L; B43L13/00; B43L13/001; B43L13/002; G01B3/56; G01B3/563
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |