Patent US2866299A successfully refreshed from Google Patents.
US2866299A
Expired / Lapsed
US
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Method for the manufacture of tempered safety glass especially intended for use in automobiles
Assignee: Compagnies Reunies des Glaces et Verres Speciaux du Nord de la France
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Filing: 1956-02-09
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Granted: 1958-12-30
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Expires: 1976-02-09
Abstract
No abstract record available.
Inventors
- 👤 Long Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/0413; B; B28; B28B; B28B21/00; B28B21/70; B28B21/74; C03B27/012; C03B27/052
Claims Analysis
Total Claims: 0
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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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |