Patent US3522407A successfully refreshed from Google Patents.
US3522407A
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Heating method
Assignee: Argus International
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Filing: 1968-03-05
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Granted: 1970-08-04
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Expires: 1988-03-05
Abstract
No abstract record available.
Inventors
- 👤 Bernard J Costello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:38
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; B; B23; B23K; B23K1/00; B23K1/005; B23K1/0053; H05; H05K; H05K13/00; H05K13/04; H05K13/046; H05K13/0465; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2393832A
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US2604005A
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US2945958A
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US3056317A
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US3230338A
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US3283124A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |