US1567210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form-locking device
Assignee: Metal Forms Corp
•
Filing: 1925-05-21
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Granted: 1925-12-29
•
Expires: 1945-05-21
Abstract
No abstract record available.
Inventors
- 👤 Herault A Trester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:46
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07
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) | 1928-12-28 | 1929-06-29 | 1929-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-28 | 1933-06-29 | 1933-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-28 | 1937-06-29 | 1937-12-29 | $7700.00 | Window Closed / Lapsed |