US3380922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray dried products
Assignee: Purex Corp Ltd
•
Filing: 1965-09-23
•
Granted: 1968-04-30
•
Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Gordon G Shields
- 👤 Charles B Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:06
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3955; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA583761A
Cited
US2992186A
Cited
US2870093A
Cited
US3093590A
Cited
US3060124A
Cited
US3073806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |