Patent US2833401A successfully refreshed from Google Patents.
US2833401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covered package with releasable initially sealed and locked closure flap
Assignee: Ivers Lee Co
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Filing: 1956-08-13
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Granted: 1958-05-06
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Expires: 1976-08-13
Abstract
No abstract record available.
Inventors
- 👤 Frank J Lefebvre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:20
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/38; B65D27/00; B65D27/12; B65D27/20; B65D27/22; B65D75/28; B65D75/30; B65D75/32; B65D75/325; B65D75/327; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |