US1293391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie and spacing member for concrete-forms.
Assignee: Individual
•
Filing: 1917-12-06
•
Granted: 1919-02-04
•
Expires: 1937-12-06
Abstract
No abstract record available.
Inventors
- 👤 Maurice M Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:24
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49632
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) | 1922-02-03 | 1922-08-05 | 1923-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-02-03 | 1926-08-05 | 1927-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-02-03 | 1930-08-05 | 1931-02-04 | $7700.00 | Window Closed / Lapsed |