US3361550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of cellular material on a molten metal bath
Assignee: Pilkington Group Ltd
•
Filing: 1964-12-17
•
Granted: 1968-01-02
•
Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Murphy Norman Aidan
- 👤 Lightfoot David Gordon
- 👤 Irlam Philip Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:35
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/12; C03B18/04; C03B19/00; C03B19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3300289A
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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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |