US2690388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed germination
Assignee: —
•
Filing: —
•
Granted: 1954-09-28
•
Expires: 1971-09-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:54
CPC Classifications
C; C07; C07D; C07D339/00; C07D339/02; C07D339/06; A; A01; A01N; A01N25/00; A01N43/00; A01N43/02; A01N43/04; A01N43/14; A01N43/16; A01N55/00; A01N55/02; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF IMPROVING THE SPROUTING AND GROWTH OF SEEDS, ROOTS AND BUBLS WHICH COMPRISES APPLYING TO THE SURFACE OF THE SEEDS, ROOTS AND BULBS AN INERT CARRIER MATERIAL CONTAINING A PORPHYRIN METALLIC COMPLEX AND A GAMMA PYRONE COMPOUND.
Claim 2
Independent Claim
39 words
A METHOD OF IMPROVING THE SPROUTING AND GROWTH OF SEEDS, ROOTS AND BUBLS WHICH COMPRISES APPLYING TO THE SURFACE OF THE SEEDS, ROOTS AND BULBS AN INERT CARRIER MATERIAL CONTAINING A PORPHYRIN METALLIC COMPLEX AND A GAMMA PYRONE COMPOUND.
References Cited (Backward Citations)
US2553577A
Cited
GB591951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |