US3320697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant protector
Assignee: Matrix Laboratories Inc
•
Filing: 1965-04-19
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Granted: 1967-05-23
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Norman B Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:04
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/18; B65D81/20; B65D81/2069; B65D81/2084; B65D85/00; B65D85/50; B65D85/52; B65D2565/00; B65D2565/38; B65D2565/381; B65D2565/388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PLANT PROTECTOR COMPRISING A FLEXIBLE TRANSPARENT IMPERVIOUS OUTER WRAP FOR EMBRACING A PLANT, SAID OUTER WRAP BEING CAPABLE OF BEING CLOSED TO FORM A GAS-TIGHT ENCLOSURE FOR THE PLANT, A SEMI-PERMEABLE ENVELOPE CONTAINING REACTANT, SAID ENVELOPE BEING DISPOSED WITHIN THE OVERWRAP, SAID REACTANT BEING CAPABLE OF FORMING CARBON DIOXIDE WHEN WATER VAPOR DIFFUSES THROUGH THE ENVELOPE IN ORDER TO ENABLE THE PLANT TO PERFORM ITS MAJOR METABOLIC FUNCTION IN THE LIGHT PHASE.
Claim 2
Dependent Claim
73 words
A PLANT PROTECTOR COMPRISING A FLEXIBLE TRANSPARENT IMPERVIOUS OUTER WRAP FOR EMBRACING A PLANT, SAID OUTER WRAP BEING CAPABLE OF BEING CLOSED TO FORM A GAS-TIGHT ENCLOSURE FOR THE PLANT, A SEMI-PERMEABLE ENVELOPE CONTAINING REACTANT, SAID ENVELOPE BEING DISPOSED WITHIN THE OVERWRAP, SAID REACTANT BEING CAPABLE OF FORMING CARBON DIOXIDE WHEN WATER VAPOR DIFFUSES THROUGH THE ENVELOPE IN ORDER TO ENABLE THE PLANT TO PERFORM ITS MAJOR METABOLIC FUNCTION IN THE LIGHT PHASE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |