Patent CA692236A successfully refreshed from Google Patents.
US1728974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcuate film splice
Assignee: AUTOMATIC FILM MACHINE Corp
•
Filing: 1927-04-08
•
Granted: 1929-09-24
•
Expires: 1947-04-08
Abstract
No abstract record available.
Inventors
- 👤 William F Mclaughlin
- 👤 Alfred J Swing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/04; G03D15/043; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7152
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) | 1932-09-23 | 1933-03-25 | 1933-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-23 | 1937-03-25 | 1937-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-23 | 1941-03-25 | 1941-09-24 | $7700.00 | Window Closed / Lapsed |