US2794574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible tubes
Assignee: Macleans Ltd
•
Filing: 1952-11-05
•
Granted: 1957-06-04
•
Expires: 1972-11-05
Abstract
No abstract record available.
Inventors
- 👤 Mcgeorge Walter
- 👤 Hamilton George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/08; B29; B29D; B29D23/00; B29D23/20; B29L; B29L2023/00; B29L2023/20; Y; Y10; Y10S; Y10S425/00; Y10S425/059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1642989A
Cited
US1811086A
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US1754496A
Cited
GB420873A
Cited
US2184712A
Cited
US2104322A
Cited
US2352384A
Cited
US2362469A
Cited
US2367144A
Cited
US2481857A
Cited
US2562523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |