US2487277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cutting channels in stone or masonry
Assignee: Individual
•
Filing: 1947-05-23
•
Granted: 1949-11-08
•
Expires: 1967-05-23
Abstract
No abstract record available.
Inventors
- 👤 Siftar Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:08
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/18; B28D1/183; B23; B23D; B23D47/00; B23D47/12; B23D47/126; B27; B27B; B27B9/00; B27B9/02; Y; Y10; Y10S; Y10S29/00; Y10S29/056; Y10S29/06; Y10S29/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |