Patent US3028680A successfully refreshed from Google Patents.
US3028680A
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Method and apparatus for controlling laundry dryers
Assignee: McGraw Edison Co
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Filing: 1957-03-19
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Granted: 1962-04-10
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Expires: 1977-03-19
Abstract
No abstract record available.
Inventors
- 👤 George D Conlee
- 👤 Leo V Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; D; D06; D06F; D06F58/00; D06F58/32; D06F58/34; D06F58/36; D06F58/38; D06F58/40; D06F2101/00; D06F2101/16; D06F2101/18; D06F2103/00; D06F2103/28; D06F2103/32; D06F2105/00; D06F2105/28; D06F2105/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |