Patent US1750833A successfully refreshed from Google Patents.
US1750833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular member
Assignee: CAIRNS DEV Co
•
Filing: 1927-05-18
•
Granted: 1930-03-18
•
Expires: 1947-05-18
Abstract
No abstract record available.
Inventors
- 👤 Edmund B Carns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:58
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/30; E04C3/32; E04C3/02; E04C3/04; E04C3/06; E04C3/07; E04C2003/0404; E04C2003/0408; E04C2003/0421; E04C2003/0426; E04C2003/043; E04C2003/0443; E04C2003/0469; Y; Y10; Y10S; Y10S16/00; Y10S16/38; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49936
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) | 1933-03-17 | 1933-09-16 | 1934-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-03-17 | 1937-09-16 | 1938-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-03-17 | 1941-09-16 | 1942-03-18 | $7700.00 | Window Closed / Lapsed |