US3536464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for glass sheet support during thermal treatment
Assignee: PPG Industries Inc
•
Filing: 1967-08-09
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Granted: 1970-10-27
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Expires: 1987-08-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel L Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:24
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/20; C03B35/202; C03B35/205; B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/061; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/031; C03B23/0315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3220818A
Cited
US3220817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |