Patent US1758337A successfully refreshed from Google Patents.
US1758337A
Expired / Lapsed
US
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Locking device
Assignee: WALTER B HINTZE
•
Filing: 1928-02-06
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Granted: 1930-05-13
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Expires: 1948-02-06
Abstract
No abstract record available.
Inventors
- 👤 John C Sheller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:13
CPC Classifications
E; E05; E05C; E05C19/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997; Y10T292/42; Y10T292/432
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) | 1933-05-12 | 1933-11-11 | 1934-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-05-12 | 1937-11-11 | 1938-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-05-12 | 1941-11-11 | 1942-05-13 | $7700.00 | Window Closed / Lapsed |