US1784511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated sheet structure
Assignee: CAIRNS DEV Co
•
Filing: 1927-03-31
•
Granted: 1930-12-09
•
Expires: 1947-03-31
Abstract
No abstract record available.
Inventors
- 👤 Edmund B Carns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:02
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/326; E04C2/02; E04C2/08; E04C2/328; E04C2/34; E04C2/3405; E04C2002/3411; E04C2002/3427; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496
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) | 1933-12-08 | 1934-06-09 | 1934-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-08 | 1938-06-09 | 1938-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-08 | 1942-06-09 | 1942-12-09 | $7700.00 | Window Closed / Lapsed |