Patent US3496815A successfully refreshed from Google Patents.
US3496815A
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Method and apparatus of making plastic aprons
Assignee: H and H Plastics Mfg Co
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Filing: 1968-03-22
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Granted: 1970-02-24
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Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 Horst Ruhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:37
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/04; B; B26; B26D; B26D1/00; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/949; Y10T; Y10T83/00; Y10T83/04; Y10T83/0476; Y10T83/889; Y10T83/896; Y10T83/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1844201A
Cited
US847536A
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US2066566A
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US3054708A
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US3146465A
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US3221341A
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US3350247A
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US3397826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |