US1111158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-hinge.
Assignee: CHICAGO SPRING BUTT Co
•
Filing: 1912-08-23
•
Granted: 1914-09-22
•
Expires: 1932-08-23
Abstract
No abstract record available.
Inventors
- 👤 William J Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:08
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/04; E05D7/0415; E05D7/0423
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) | 1917-09-21 | 1918-03-23 | 1918-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-09-21 | 1922-03-23 | 1922-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-09-21 | 1926-03-23 | 1926-09-22 | $7700.00 | Window Closed / Lapsed |