US1322248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter-head eor boring-machines
Assignee: —
•
Filing: —
•
Granted: 1919-11-18
•
Expires: 1936-11-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:28
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/02; B23D77/04; B23D77/042; B23B; B23B51/00; B23B51/10; B23B51/101; Y; Y10; Y10T; Y10T408/00; Y10T408/57; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8583
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) | 1922-11-17 | 1923-05-19 | 1923-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-11-17 | 1927-05-19 | 1927-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-11-17 | 1931-05-19 | 1931-11-18 | $7700.00 | Window Closed / Lapsed |