US3465720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for germ-free rearing of silkworms by using plastic isolator
Assignee: Gunze Ltd
•
Filing: 1967-07-07
•
Granted: 1969-09-09
•
Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Homare Miyazawa
- 👤 Shoichi Tarui
- 👤 Masaki Kamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:01
CPC Classifications
A; A01; A01K; A01K67/00; A01K67/30; A01K67/34; A01K67/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1096116A
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US2809463A
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US2885819A
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US2949882A
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US3299253A
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US3295983A
Cited
US3283743A
Cited
US3343520A
Cited
US3367308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |