US3538725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hood locking device
Assignee: CHAPMAN INDUSTRIES CORP A CORP OF
•
Filing: 1968-10-31
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Granted: 1970-11-10
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Louis F Guenther
- 👤 Charles P Barcik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/16; E05B83/24; E05B79/00; E05B79/10; E05B79/20; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5903; Y10T70/5907; Y10T70/5973; Y10T70/5978; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7576; Y10T70/778; Y10T70/7791; Y10T70/7881; Y10T70/7893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1276117A
Cited
US1481498A
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US1846782A
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US1881552A
Cited
US1876894A
Cited
US1997050A
Cited
FR1030017A
Cited
DE1166654B
Cited
US3465558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |