US2444443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite flexible moistureproof wrapping tape or sheet
Assignee: 3M Co
•
Filing: 1943-02-10
•
Granted: 1948-07-06
•
Expires: 1963-02-10
Abstract
No abstract record available.
Inventors
- 👤 Hesselroth Charles Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:18
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/60; B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US340810A
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US674219A
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US1714240A
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US1765839A
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US1882715A
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US1984910A
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US1997857A
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GB446713A
Cited
US2102207A
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US2291838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |