US3012640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Chicago Metallic Co LLC
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Filing: 1955-09-20
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Granted: 1961-12-12
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Expires: 1975-09-20
Abstract
No abstract record available.
Inventors
- 👤 Edward G Sluka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:12
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0493; E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/16; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/248; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T403/00; Y10T403/71; Y10T403/7182; Y10T403/7194
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR321120A
Cited
US814092A
Cited
US1607711A
Cited
US1941211A
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US2218820A
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US2447694A
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US2843230A
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US2767440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |