US3048383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace or like system for gas-supporting and treating flat work
Assignee: SWINDELL DRESSLER CORP
•
Filing: 1958-09-18
•
Granted: 1962-08-07
•
Expires: 1978-09-18
Abstract
No abstract record available.
Inventors
- 👤 Champlin John Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:48
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/63
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1948173A
Cited
DE652038C
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US2144919A
Cited
US2519059A
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US2525112A
Cited
US2525203A
Cited
US2669068A
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AT167413B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |