US3400855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spillproof containers
Assignee: EDWIN S ALEXANDER
•
Filing: 1965-06-07
•
Granted: 1968-09-10
•
Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Edwin S Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:56
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/22; A47G19/2205; A47G19/2211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1752137A
Cited
GB502009A
Cited
DE697496C
Cited
US2362354A
Cited
US2428056A
Cited
US2985333A
Cited
US3079028A
Cited
US3138371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |