US645949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection apparatus.
Assignee: Individual
•
Filing: 1899-04-17
•
Granted: 1900-03-27
•
Expires: 1919-04-17
Abstract
No abstract record available.
Inventors
- 👤 John J Frawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:43
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43; G03B21/44; G03B21/46
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) | 1903-03-27 | 1903-09-26 | 1904-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-03-27 | 1907-09-26 | 1908-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-03-27 | 1911-09-26 | 1912-03-27 | $7700.00 | Window Closed / Lapsed |