US2592976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant-growing apparatus
Assignee: BENJAMIN F KREHBIEL
•
Filing: 1948-02-14
•
Granted: 1952-04-15
•
Expires: 1968-02-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21; Y10; Y10S; Y10S47/00; Y10S47/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374499A
Cited
DE70858C
Cited
US1954674A
Cited
US2051461A
Cited
US2121461A
Cited
US2306027A
Cited
US2316309A
Cited
US2486512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |