US2469856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichamber container
Assignee: Individual
•
Filing: 1945-09-28
•
Granted: 1949-05-10
•
Expires: 1965-09-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3283; B65D81/3288; B65D1/00; B65D1/22; B65D1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US193025A
Cited
US344932A
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US815783A
Cited
GB116607A
Cited
US1352238A
Cited
US1421645A
Cited
US1459257A
Cited
US1553648A
Cited
US1579958A
Cited
US2160517A
Cited
US2223432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |