US3476542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spray cooling glass sheets
Assignee: Pilkington North America Inc
•
Filing: 1966-04-18
•
Granted: 1969-11-04
•
Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 George F Ritter Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/0404; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/0302; C03B27/0417; C03B27/044; C03B27/0442; C03B2225/00; C03B2225/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971268A
Cited
US1999337A
Cited
US2365138A
Cited
US2478090A
Cited
US2826005A
Cited
US3265484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |