US2689101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waler bracket
Assignee: Individual
•
Filing: 1951-08-17
•
Granted: 1954-09-14
•
Expires: 1971-08-17
Abstract
No abstract record available.
Inventors
- 👤 Donald A Dygert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1395308A
Cited
US1805648A
Cited
US2168714A
Cited
US2295800A
Cited
US2480805A
Cited
US2452203A
Cited
US2608386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |