US1512609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain
Assignee: Individual
•
Filing: 1920-07-12
•
Granted: 1924-10-21
•
Expires: 1940-07-12
Abstract
No abstract record available.
Inventors
- 👤 Carl W A Koelkebeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/10
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) | 1927-10-21 | 1928-04-21 | 1928-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-10-21 | 1932-04-21 | 1932-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-10-21 | 1936-04-21 | 1936-10-21 | $7700.00 | Window Closed / Lapsed |