US1607688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescope of the right-angled type with fixed eyepiece and movable objective, chiefly applicable to the observation of aerial objects
Assignee: Individual
•
Filing: 1924-02-01
•
Granted: 1926-11-23
•
Expires: 1944-02-01
Abstract
No abstract record available.
Inventors
- 👤 Perrin Jean Baptiste
- 👤 Marcelin Andre Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
G; G02; G02B; G02B23/00; G03; G03B; G03B13/00; G03B13/02; G03B13/06
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) | 1929-11-22 | 1930-05-24 | 1930-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-11-22 | 1934-05-24 | 1934-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-11-22 | 1938-05-24 | 1938-11-23 | $7700.00 | Window Closed / Lapsed |