Patent US3544294A successfully refreshed from Google Patents.
US3544294A
Expired / Lapsed
US
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Method for manufacturing laminated glass plates
Assignee: Toshiba Corp
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Filing: 1967-10-05
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Granted: 1970-12-01
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Expires: 1987-10-05
Abstract
No abstract record available.
Inventors
- 👤 Eizo Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:13
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/673; E06B3/67326; C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044; E06B3/67339; E06B3/67343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2235680A
Cited
US2708774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |