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US3468645A
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Method and apparatus for shaping glass sheets supported on a gas support bed
Assignee: Permaglass Inc
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Filing: 1966-05-09
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Granted: 1969-09-23
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Harold A Mcmaster
- 👤 Norman C Nitschke
- 👤 John J Kawecka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:20
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/0256; C03B23/0258; C03B23/03; C03B23/0302; C03B23/035; C03B23/0352; C03B23/0357; C03B29/00; C03B29/02; C03B29/025; C03B35/00; C03B35/14; C03B35/22; C03B35/24; C03B35/243; C03B2225/00; C03B2225/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3223501A
Cited
US3341312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |