US1177843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-tool for setting screw-anchors.
Assignee: Individual
•
Filing: 1915-03-20
•
Granted: 1916-04-04
•
Expires: 1935-03-20
Abstract
No abstract record available.
Inventors
- 👤 Charles N Ackerman
- 👤 John L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:08
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/02; B21J15/04; B21J15/043; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53717; Y10T29/53726; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53878; Y10T29/53909; Y10T29/5393
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) | 1919-04-04 | 1919-10-04 | 1920-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-04-04 | 1923-10-04 | 1924-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-04-04 | 1927-10-04 | 1928-04-04 | $7700.00 | Window Closed / Lapsed |