US3028872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic greenhouses
Assignee: Individual
•
Filing: 1959-06-17
•
Granted: 1962-04-10
•
Expires: 1979-06-17
Abstract
No abstract record available.
Inventors
- 👤 Cresswell Harold William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:24
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/14; A01G9/1407; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y10; Y10S; Y10S135/00; Y10S135/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |