US2795018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-glazed cells
Assignee: Corning Glass Works
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Filing: 1954-03-04
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Granted: 1957-06-11
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Expires: 1974-03-04
Abstract
No abstract record available.
Inventors
- 👤 Morton R Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245; E; E06; E06B; E06B3/00; E06B3/66; E06B3/677; G; G11; G11B; G11B3/00; G11B3/58; G11B3/589; Y; Y10; Y10S; Y10S65/00; Y10S65/04
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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |