US3539205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation pipe system and pipe units therefor
Assignee: GIFFORD HILL WESTERN Inc
•
Filing: 1968-10-09
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Granted: 1970-11-10
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Expires: 1988-10-09
Abstract
No abstract record available.
Inventors
- 👤 James Burl Johnson Jr
- 👤 Horace Bishop Lindly
- 👤 William Jackson Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/02; B29C57/04; B29C57/045; F; F16; F16L; F16L21/00; F16L21/02; F16L21/025; F16L47/00; F16L47/06; F16L47/08; B29L; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |