Patent US2931084A successfully refreshed from Google Patents.
US2931084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheeting holder
Assignee: American Hospital Supply Corp
•
Filing: 1955-02-14
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Granted: 1960-04-05
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Witt Harry K De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:52
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/02; A47C21/022; A47C31/00; A47C31/10; A47C31/105; Y; Y10; Y10T; Y10T24/00; Y10T24/23; Y10T24/31; Y10T24/318
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US318914A
Cited
US696302A
Cited
US1095564A
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US1167040A
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US1328621A
Cited
US1365169A
Cited
US1987592A
Cited
US1913965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |