US3351225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition for dual chambered container and method of forming mold therefor
Assignee: Hedwin Corp
•
Filing: 1965-03-24
•
Granted: 1967-11-07
•
Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Charles A Speas
- 👤 Charles T Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:12
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955610A
Cited
US2271454A
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US2826338A
Cited
US2941689A
Cited
US3052317A
Cited
GB969463A
Cited
US3215763A
Cited
FR1354664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |